Full face mask



FIG. 1 is a top plan view of the face mask;

FIG. 2 is a left side elevational view of the face mask;

FIG. 3 is a right side elevational view of the face mask;

FIG. 4 is a front elevational view of the face mask;

FIG. 5 is a rear elevational view of the face mask; and,

FIG. 6 is a bottom plan view of the face mask. 

The ornamental design for a full face mask, as shown and described. 